Internal-combustion engine



June 24, 1930. J. H. MARKS 1,766,917

' INTERNAL COMBUSTION ENGINE Filed June 20, 1928 anemia JAMES H. MARKS.

Patented June 24, 1930 mums n. or person, MICHIGAN,

comm, or nnrnorr, moment,

A conronnrron or MICHIGAN mnmun-counusrron ENGINE Application filed June 20,

This invention relates to internal combustion engines and more particularly to 011- ing systems therefor.

There is always the possibility of gritdamaging the bearings of an internal combustion engine even though the oil may be frequently renewed and to overcome this possibility various designs of oil filtering and refining systems have been used. Substantially all of such systems have the inherent disadvantage that they require personal attention, and where the personal equation enters into such matters the filtering and cleansing devices seldom, if ever, receive the attention requisite to place them in condition so that they may 1plroperly perform their intended function. ence, the resent invention proposes to couple a "ltering or cleansing device with the drain of'the crank case, so that when the crank case is drained pgriodically the filter or refining device will ponent parts so that its manufacture is ecoautomatically cleansed."

An object of the invention is to provlde means for cleaning a filter adapted to operatdautotfiaticallywith amea w control" H ling a drain for the crank case of an internal combustion engine.

Another object of the invention is to provide an oil filter housed within the crank case of an internal combustion engine and connected in the oiling system thereof and to the drainof the crank case-so that upon opening the crank case drain the filter is automatically cleansed.

A further object of the invention is to provide a combined filter and a crank case drain for the oiling system of an internal combustion engine, the filter having a cleans ing means operating concomitantly with a valve for opening and closing the drain.

provide a combined oil filter and crank case drain for the oiling ,systemiof an internal ing means arranged too crate automaticall withthe opening and c osing means. ofthe drain, operation and yet of marked sim a whole. and ,in-resp'ect to cache its comcombustion engine, the filter having a,cleans-.-

the structure-being highly eificient in licity as.-

1928 Serial No. 286,838.

nomically facilitated both as regards to parts and their assembly. j V

Other objects of the invention will ap-" pear from the followingdescription taken; in connection with the drawings which form a part of this specification, and in which:

,Assnmon 'ro rn'cnann moron on.

Fig. 1 is a vertical sectionalview of a crank case illustrating the invention as ap: plied, the crank case being partly broken away;

and

Fig. 3 isa top'pla'n view of thehousing. with the cover removed and the filter-'ele ment in position.

eferring to the drawings for morespecific details of the invention, 10 represents generally the crank case of an internaljcom-f; bustion engine having positioned therein an Fig. 2 is a bottom plan view otfthecover, f

oil filter 11. As shown", the-crank case is'of;

the usual split type havinga crank case l2" and an oil pan 13 secured together in the" able drain 14: having. arranged. therein'f a valve seat 15 in whic'his seated a valve 16 having an upwardly extending stem 17.. threaded as indicated at 18 and provided with a diametrical slot 19. The

trolling the passage. p p Secured to the sidewall o'fthe oil pan im;

mediately above the drain is a' housing 20 having formedthereon a boss 21 tapped receive a drain or clean-outxplug 22.

conventional manner. 'In the bo tom of the I I 011 pan adjacent to one sideth r l a suit? a jjelev be of any preferred 'typeusuitable 'for'jc'on shown, the boss 21 is elongated; and enter;

nally threaded as indicated at 23," and ex tends through an aperture v v V of the-oil panto'receiveafnut- 25with suitv able'washers interposed? This structure pr ce" A still further, object of the inventionis to.

24' in the sidewall" vides'in addition to a suitable "drain 0r"'clea'11- out for the housingg a very desirable support therefor's a In the bottom of thehousin'g20 is a boss;

y 26 having'a bore 27in'axialaligninn ifl of" the valve stem 17 and'thebore filter element are fixed provided with a plurality of circumferential slots 32 and a number of passages 33 parallel to the axis thereof.-- This member constitutes the filtering element.

Suitably secured on the housing is a cover 34 having positioned on the bottom thereof a stud 35 on which is arranged in spaced relation a plurality of plates 36 engaging the slots in themember 31 so that the slots are brushed and cleansed'upon rotation of the member 31. The cover is provided with a chamber 37 communicating through an annular opening 38 with the upper end of the passages in the member 31. The chamber 37 has an outlet port 39 adapted to be connected by a pipeline to the manifold of the oiling system and an intake port 40 is provided for admitting oil from a pipe line through which oil is fed under pressure to a chamber 41 in the cover communicating with the housing'20 in which the filtering element is ositioned.

he cover has formed thereon a boss 42 bored as indicated at 43 to receive the upper end of the shaft 29 and mounted for rotation in the bore 43 is a shaft 44 provided upon its lower end with adiametrical tongue 45 engaging a diametrical slot 46 in the to of'the shaft 29. The upper end of the sha 44 extends upwardly through the crank case and is provided with a suitable handle 47 by means of which the shafts are rotated to open and close the valve controlling the drain 14 in the bottom of the crank case. It is to be observed that in opening and closing the valve the filter element is rotated and that the finger or plates en aging the slots in the 'or stationary, hence the slots are automatically cleansed upon the opening and closing of the valve.

Although this invention has been described in connection with certain specific embodiments, the princi les involved are susceptible of, numerous ot or applications that will readily occur to persons skilled in the art. The invention is, therefore, to be limited only as indic'atedby the scope of the appended.

claims.

Having thus described'the various features of my invention, what I claim as new.

and desire to secure by Letters Patent is;

1. In combination with an-internal combustion engine having an oiling system and a drain therefor, a filter connected in the oiling system and means for cleaning the filter automatically upon opening or closing the drain and without altering the connection of the filter to the oiling system.

2. In combination with an internal combustion engine having an oiling system and a valved drain therefor, a filter connected in the oiling system, means constantly connected to the drain valve for controlling the drain and means for. cleaning the filter automatically upon manipulation of-the means for controlling the drain.

bustion engine having an oiling system and a drain therefor, a filter positioned in the crank case of the engine, a valvecontrolling the drain and means for cleaning the filter automatically upon manipulation of the valve.

5. In combination with an internal come bustion engine havin an oiling system and a drain therefor, a lter positioned in the crank case of the engine having a clean-out port opening through the wall of the crank case, a valve for the drain and means for cleaning the filter automatically upon manipulation of thevalve.

6. In combination with an internal combustion engine having an oiling system and a drain therefor, a filter in the crank case of the en ine having a clean-out port opening throng the wa thereof, a valve for the drain, a slidingconnection between the valve valve.

7. In combination with an internal combustion engine having an oiling system and i a drain therefor,a housing in the crank case of the engine, the housing having a port opening through the wall of the crank case, a filter element in the housing, a valve for the drain connected to the filter element, a cleansing member associated with the filter element, a shaft connected to the filter element extending through the wall of the crankcase and means for rotating the shaft to operate the valve and cleanse the filter element concomitantly. I

' -8. In combination with an internal combustion engine having an oiling system and 'a drain therefor, a housing in the crank case of the engine havinga clean out port opening throu h the wall thereof, a filter element mounted or rotation in the housing, a cleansing member co-operating with the filter element, a valve for the drain having a sliding connection with the filter element, a shaft for rotating the valveand filter element con comitantly, the shaft extending throu h the wall of the crankcase and a handle or rotatin the shaft.

9. n combination with an internal combustion engine having a crank case and a drain therefor, 22. filter including a housing and movable filter cleaning means within the housing, and means for operating the cleaning means as the crank case drain is opened or closed.

10. In combination with an internal combustion engine having a crank case with a drain opemn a valve for the drain opening a filter inclu ing a housing having a drain opening, means movable to. clean the filter,

and. interconnections between the valve and the filtezcleaning means arranged to clean the filter as the crank case drain is opened or closed independently of the filter housing drain.

In testimony whereof I aflix m si ature.

JAMES H. KS. 

